2015
DOI: 10.1016/j.jpba.2015.06.013
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Comprehensive identification of 125 multifarious constituents in Shuang–huang–lian powder injection by HPLC-DAD-ESI-IT-TOF-MS

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Cited by 59 publications
(54 citation statements)
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“…The ions at m/z 179 and 191 in negative mode were deprotonated ions of caffeic acid ([CA-H] − ) and quinic acid ([QA-H] − ). Compared with standard compounds and previous reports [25, 2832], peaks 3 , 4 , and 5 were thus identified as isomers of dicaffeoylquinic acid, isochlorogenic acid B, isochlorogenic acid A, and isochlorogenic acid C, respectively.…”
Section: Resultsmentioning
confidence: 51%
“…The ions at m/z 179 and 191 in negative mode were deprotonated ions of caffeic acid ([CA-H] − ) and quinic acid ([QA-H] − ). Compared with standard compounds and previous reports [25, 2832], peaks 3 , 4 , and 5 were thus identified as isomers of dicaffeoylquinic acid, isochlorogenic acid B, isochlorogenic acid A, and isochlorogenic acid C, respectively.…”
Section: Resultsmentioning
confidence: 51%
“…The MS 2 spectrum of m/z 191 presented the fragments of m/z 127, 85 and 59, the base peak at m/z 127 corresponding to the loss of [M − H − H 2 O − HCOOH] − . Hence, it was identified as quinic acid by comparison with the published data (de la Luz Cádiz‐Gurrea et al, ; Santos et al, ; Sun et al, ).…”
Section: Resultsmentioning
confidence: 85%
“…Peaks 1 – 3 , 5 , 32 , 33 and 37 were identified as quinic acid, citric acid, succinic acid, vanillic acid, carnosic acid, linolenic acid and palmitic acid, respectively, by comparing their MS/MS profiles with the published data (de la Luz Cádiz‐Gurrea, Fernández‐Arroyo, Joven, & Segura‐Carretero, ; Maringer, Ibáñez, Buchberger, Klampfl, & Causon, ; Riffault et al, ; Santos, Freire, Domingues, Silvestre, & Pascoal, ; Sun et al, ; Zeng, Xiao, Liu, & Liang, ). For these peaks with one or two carboxyl groups, the characteristic fragments were supported by their common losses of CO 2 (44 Da).…”
Section: Resultsmentioning
confidence: 99%
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“…11 compounds were unambiguously identified by comparing with reference standards. For other compounds, the structures were tentatively identified by comparing with previous studies , according to accurate mass, MS/MS data, fragmentation rules and chromatographic behavior. However, the trace peaks in the single herbs might be missed in the TCM formula.…”
Section: Resultsmentioning
confidence: 99%